Add Dagster+ agent overview guide (#25790)

gibsondan · claude · jamiedemaria · Dagster Devtools · commit 7e8a1303f8de · 2026-07-02T19:00:08.000Z
## What

Adds `runbooks/guides/infrastructure/dagster-plus-agent.md` — a
technical handoff and support reference for the **Dagster+ (Dagster
Cloud) agent**, aimed at a new eng owner and at future support cases
involving the agent.

##

---------

Co-authored-by: Claude Opus 4.8 (1M context) &lt;noreply@anthropic.com&gt;
Co-authored-by: jamiedemaria &lt;jamie@dagsterlabs.com&gt;
Internal-RevId: aa9eefc77d9416390eb087bd2fb9f49830122bf6
diff --git a/python_modules/dagster-cloud/dagster_cloud/workspace/user_code_launcher/user_code_launcher.py b/python_modules/dagster-cloud/dagster_cloud/workspace/user_code_launcher/user_code_launcher.py
@@ -97,7 +97,7 @@
 DEFAULT_SERVER_PROCESS_STARTUP_TIMEOUT = 180
 DEFAULT_MAX_TTL_SERVERS = 25
 ACTIVE_AGENT_HEARTBEAT_INTERVAL = int(
-    os.getenv("DAGSTER_CLOUD_ACTIVE_AGENT_HEARTBEAT_INVERAL", "600")
+    os.getenv("DAGSTER_CLOUD_ACTIVE_AGENT_HEARTBEAT_INTERVAL", "600")
 )
 
 

Original file line number	Diff line number	Diff line change
`@@ -97,7 +97,7 @@`
`97`	`97`	`DEFAULT_SERVER_PROCESS_STARTUP_TIMEOUT = 180`
`98`	`98`	`DEFAULT_MAX_TTL_SERVERS = 25`
`99`	`99`	`ACTIVE_AGENT_HEARTBEAT_INTERVAL = int(`
`100`		`- os.getenv("DAGSTER_CLOUD_ACTIVE_AGENT_HEARTBEAT_INVERAL", "600")`
	`100`	`+ os.getenv("DAGSTER_CLOUD_ACTIVE_AGENT_HEARTBEAT_INTERVAL", "600")`
`101`	`101`	`)`
`102`	`102`
`103`	`103`